public void GetIntersection_WLine_SecondLineVertical() { //arrange Geometry.MarginOfError = 0.001; Geometry.CoordinatePlane = Geometry.CoordinatePlanes.Screen; WLine a = new WLine(new WPoint(36.3639, 305.3639), new WPoint(30, 129)); WLine b = new WLine(new WPoint(39, 129), new WPoint(39, 171)); //act Intersection result = a.GetIntersection(b); //assert Assert.IsTrue(result.IsPoint); }